Stroboscopic Ornaments

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Jiří Zemánek, whose EggBot work we have featured before, sent in this wonderful video of stroboscopically animated Christmas ornaments.

The stroboscopic patterns are designed in MATLAB and drawn by EggBot Pro on colored glass Christmas ornaments. Motion of the balls is controlled by custom mechanism built using components from two Prusa i3 MK3 3D printers, like six stepper motors and two Rambo boards. On top of designing the patterns, which is Jiri’s hobby (when he is not busy with research) and building the whole contraption in a very short time, the team had to deal with issues including non-spherical ornaments, or how to use Rambo board to precisely control the velocity profiles.

We love to see how people make things, and Jiri did not disappoint, sharing process photos of making the rotation mechanisms.

With great help from his colleagues Martin, Krištof, and Filip they took Christmas ornaments to the next level and taught them to dance!

The final setup shot captures how they created such a beautiful video.

Merry Christmas to Jiri and the Advanced Algorithms for Control and Communications group! Thank you for sharing your project!

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Linkdump: November 2018

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Maker Gift Basket

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Gareth Branwyn posted an article on creating a gift basket for makers. It is full of awesome tools, including one of our favorites, the resistor lead forming tool.

He’s also having a give-away for his example basket!

To be eligible, all you have to do is post an entry, on Twitter, Instagram, or Facebook, mentioning my book, this article, and/or the idea of a tool gift bag, and include this link and hashtag: https://amzn.to/2DPaXAd #tipsandtalesfromtheworkshop. The only things you have to include are the link and the hashtag. You can post as many times as you like. On Dec 12th, I’ll do a random drawing from the hash-tagged entries and send out your gift basket.

Note: This drawing is only available to those residing in the United States.

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New Magnetic Easels for AxiDraw

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We’ve just added two new magnetic easels for AxiDraw to our lineup of AxiDraw accessories. They are sturdy work-holding tools that provide an alternative method of positioning paper or other workpieces for use with the AxiDraw. A heavy-duty alternative to the regular clip easel, they can be used with binder clips or the included positioning rulers and magnets.

The Letter/A4 size easel works with the AxiDraw V3.

The Tabloid/A3 size easel works with the AxiDraw V3/A3 and the AxiDraw SE/A3 models.

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PCB Etching with AxiDraw

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Patricio Gonzalez Vivo has been using AxiDraw for circuit board etching experiments.

He draws on copper clad boards with a Sharpie marker with the AxiDraw.

Drawing is followed by a chemical bath.

The marker is cleaned off of the remaining copper to reveal the design. It came out beautifully.

If you’ve used the AxiDraw for marker masking for etching, we’d love to hear about it!

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Linkdump: October 2018

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